https://thehill.com/homenews/administration/506214-trump-administration-formally-withdraws-us-from-WHO-
The White House has officially withdrawn the United States from the World Health Organization (WHO), a senior administration official confirmed Tuesday, breaking ties with a global public health body in the middle of the coronavirus pandemic.
The U.S. withdrawal is effective as of Monday and has been submitted to the United Nations secretary-general, the official said Tuesday.
Sen. Robert Menendez (D-N.J.), the top Democrat on the Senate Foreign Affairs Committee, tweeted that the administration informed Congress of the withdrawal.